The Reserve Bank of Australia is tipped to cut interest rates to a record-low level in March, as the effects of the global downturn threaten to really hit the domestic economy.

Thirteen of 16 economists surveyed by AAP expect the Reserve Bank of Australia to cut the cash rate when it holds its monthly board meeting tomorrow.

The median forecast was for a 50-basis point rate cut, which would take the cash interest rates to a record low of 2.75% when the RBA announces its decision at 2.30pm tomorrow.

The RBA has already slashed interest rates by 400 basis points - or four percentage points - since September.

The Age